Dexus have amalgamated five separate building titles to create a landmark 3300 square metre site in the Sydney CBD dress circle, overlooking the harbour and its bridge. enstruct assisted Dexus throughout the design competition process and assisted with the preparation, both Stage 1 and Stage 2 DAs as well as the tender documentation. enstruct was novated to the successful contractor to complete construction documentation and overview the construction process. The 30 storey office tower contains 45,760 square metres of floor space, with a typical floor net lettable area in the order of 1680 square metres. The unique elliptical floor plate requirements for minimum 1000 square metres of continuous column free space, and aspirations for a transparent façade, have led to an innovative long span floor structure. Radial post tensioned beams cantilevering some six metres support the double skin façade.